The coordinates of the fourth corner is
A. (-1, 3)
Step-by-step explanation:
A. D(t) = -25t + 160
this is the correct answer because if you substitute 3 you get 85
I'm not totally sure the exact answer, or if this even helps, but the Y intercept is changing from -2 to 5
D shows equivalent expressions
3x+x-4+100 = 180
4x +96 =180
4x = 180 -96
4x = 84
x=84/4
x=21
